I had similar problems with my own laptop after going from 8 to 8.1, for both our open and 802.1x SSIDs. We are running WLC 5508s with 1142Ns, and the problem existed on the current versions of both 7.2 and 7.4 code. The laptop is a Dell M4700 with Broadcom 802.11n drivers. Strangely, the laptop worked with my home router. Here's what happened on my tests:
Newest Dell 6.30.223.143 won't work 8.1 6.30.223.102 won't work Old 5.100.245.200 works Thanks John From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Curtis K. Larsen Sent: Wednesday, December 4, 2013 3:13 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Windows 8 and Broadcom wireless cards I have seen three cases of this. We are running Cisco WiSM2's and 1142/3500/3600 series AP's. All three laptops were working fine on Win7, and then after upgrading to Win 8.1 they can no longer get an IP address on either our open SSID or our .1x SSID. On a debug, I show that our DHCP server has offered the client an address. In all three cases they were using a Broadcom 802.11n adapter. Specifying a static IP did not work. I had one user come in and after a little hunting I was unable to find any Win8.1 supported driver from the laptop vendor so I connected two other USB adapters to the same machine and they both worked fine on either an open or 1x SSID. I told the user to downrgrade until a supported driver is published for their adapter/OS combination, or by a USB adapter. Thanks, Curtis Larsen University of Utah Wireless Network Engineer ________________________________ From: The EDUCAUSE Wireless Issues Constituent Group Listserv [WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] on behalf of Christopher Howard [christopher-how...@utc.edu] Sent: Wednesday, December 04, 2013 12:53 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: Re: [WIRELESS-LAN] Windows 8 and Broadcom wireless cards We are an Aruba shop and have had problems with this as well. Our Windows 8 users have been fine on our 802.1x wireless network, but any of them that have upgraded to 8.1 are shot. Includes Broadcom and Qualcomm chipsets so far. No one has had any luck so far, but I'm trying to get some users to attempt the driver rollback to see if that helps. Hoping it does. :) -Christopher On 12/4/13, 2:47 PM, T. Shayne Ghere wrote: Has anyone seen people upgrading their Windows 7 computers to Windows 8 or 8.1 and the wireless breaks completely? That's what I'm seeing here with the Broadcom and some Atheros cards. I've been working on this since Monday (solid) and cannot get any Broadcom wlan cards to connect with Windows 8 or 8.1pro, but if I re-image the computer to Windows 7 pro, it works just fine. We are a complete Cisco shop with about 500 1142N AP's and 128 1231, 1232 and 1251 AP's so unless we replace the 1200's we're stuck at the 7.0.253.5 code (which is supposed to fix it). But that's not what we're seeing if they're upgrading their computers. All the new computers are working just fine that come pre-installed with Windows 8. Upgrade to 8.1pro and that's the gotcha we're seeing too. Thanks for all the suggestions, but I've shelved the Broadcom chipset as a "Won't work on our wireless network" if you upgrade to 8. Now moving on to some of the others that are coming in. Going to be fun after Christmas. /ugh Thanks Shayne ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
